Plantar Pressure Distribution During Tai Chi Exercise
Abstract
Mao DW, Li JX, Hong Y. Plantar pressure distribution during Tai Chi exercise.
Objectives
To describe and quantify the plantar pressure distribution characteristics during Tai Chi exercise and to explain the beneficial effect of Tai Chi on balance control and muscle strength when compared with normal walking.
Design
Description and within-subject design.
Setting
A biomechanics laboratory.
Participants
Sixteen experienced Tai Chi practitioners.
Interventions
Not applicable.
Main Outcome Measures
Pressure-time integral, ground reaction force, and displacement of center of pressure (COP).
Results
During Tai Chi movements, the loading of the first metatarsal head and the great toe were significantly greater than in other regions (P<.05). The ground reaction forces varied between the Tai Chi movements and normal walking. Compared with normal walking, the locations of the COP in the Tai Chi movements were significantly more medial and posterior at initial contact (P<.05), and were significantly more medial and anterior at the end of contact with the ground (P<.05). The displacements of the COP were significantly wider (P<.05) in the mediolateral direction in the forward, backward, and sideways Tai Chi movements. The displacement was significantly larger (P<.05) in the anteroposterior direction in the forward movement.
Conclusions
The plantar pressure characteristics of Tai Chi movements found in this study may be one of the important factors that Tai Chi exercise improves balance control and muscle strength.
aDepartment of Sports Science and Physical Education, Chinese University of Hong Kong, Shatin, Hong Kong
bShandong Institute of Physical Education and Sports, Jinan, Shandong, China
cSchool of Human Kinetics, University of Ottawa, ON, Canada.
Reprint requests to Youlian Hong, PhD, Dept of Sports Science and Physical Education, Chinese University of Hong Kong, Shatin, NT, Hong Kong
Supported by the Hong Kong Special Administrative Region (project no. CUHK4360/00H).
No commercial party having a direct financial interest in the results of the research supporting this article has or will confer a benefit upon the authors or upon any organization with which the authors are associated.
ABSTRACT